Comments (13)
You are touching an issue that is nagging on me for quite some time now. In regular LaTeX one could use the enumitem
package to customize enumeration environments. Unfortunately, Beamer overrides the enumeration environments itself thus making any space customization very hard (without replicating everything in the theme again).
Your case is simpler however and you may define a new environment to add that spacing, i.e. something like this
\newenvironment{Itemize}{\vspace{1em}\begin{itemize}}{\end{itemize}}
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@bgat After looking into beamer's source code, I discovered that its redefined itemize/enumerate enviroments helpfully provide hooks for customization, so you don't have to create any custom environments after all.
\setbeamertemplate{itemize/enumerate body end}{\vspace{1em}}
will automatically add some extra space after the end of each itemize and enumerate environment without breaking anything else. (Note: itemize/enumerate
is the actual key name; itemize
or enumerate
separately won't work.)
Hope this helps!
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Another related problem which is bugging me, is the \leftmargini
of the itemize
and enumerate
environment. Our current setting looks fine for itemize
, but bad for enumerate
.
But simply increasing the \leftmargini
values doesn't help either. Because then it is the other way around. And afaik there is now easy way to change the two independently.
Any thoughts on this one?
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Is the problem actually due to the bullet's sidebearing? Is it actually
character width that makes it look wrong?
On Fri, Jun 19, 2015, 1:50 AM Benjamin Weiss [email protected]
wrote:
Another related problem which is bugging me, is the \leftmargini of the
itemize and enumerate environment. Our current setting looks fine for
itemize, but bad for enumerate.[image: screenshot_lists]
https://cloud.githubusercontent.com/assets/9158719/8244718/92ab634c-1624-11e5-81ac-eaed07d6db35.pngBut simply increasing the \leftmargini values doesn't help either.
Because then it is the other way around. And afaik there is now easy
way to change the two independently.Any thoughts on this one?
Reply to this email directly or view it on GitHub
#29 (comment).
Bill Gatliff
[email protected]
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Is it actually character width that makes it look wrong?
Yes. Because the length \leftmargini
sets the distance between the left frame margin and the start of each item. I hope you understand how I mean that. If not, just set it to zero to test it. Then it should be clear what happens.
\setlength{\leftmargini}{0pt}
So if the label of each item is wider than the bullet it doesn't fit. And it gets even worse if you have 2 digit numbers.
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Untested but worth trying: let \leftmargini
take its default value and instead use the itemize item
Beamer template to
\flushleft
the bullet,\flushleft
the bullet after putting it in a box of width\leftmargini
, or- add space after the bullet to push it to the left,
whichever of these actually works.
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As @bgat says, this ultimately comes down to the size of the bullet: since it is considerably narrower than a numeral, it is not possible to get all the alignments perfect.
The current behaviour aligns itemize
bullets perfectly with the periods after each enumerate
numeral, creating consistent spacing between each bullet and the corresponding list item.
@benjamin-weiss's proposed behaviour would align both itemize
bullets and enumerate
numerals on the left with the surrounding text. This is possible with
\setbeamertemplate{itemize item}{\makebox[\labelwidth][l]{\textbullet}}
\setbeamertemplate{enumerate item}{\makebox[\labelwidth][l]{\insertenumlabel.}}
but necessarily comes at the cost of misaligned periods and bullets on the right-hand side.
I generally prefer the first behaviour, so I'll vote to close this issue, but I'm open to other suggestions if you have them.
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Looking at your screenshots I actually also prefer the first one. It is the way itemize
and enumerate
are indented in LaTeX and this seems to give the best results. But if we decide to use the first one we should increase the leftmargini
value or just remove the following adjustments in the inner theme completely.
\setlength{\leftmargini}{1em}
\setlength{\leftmarginii}{1em}
\setlength{\leftmarginiii}{1em}
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I'd be fine with removing the adjustments.
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I also tested it with the default settings and I agree. Removing the adjustments is imho the best solution.
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Does that mean both enumerate
and itemize
would be flush to the left? I don't have a good source to cite, but whenever I encountered these types (regardless of TeX or not) they are always indented (or IMHO worse "hanging").
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We originally investigated the possibility of having enumerate
and itemize
flush to the left, but we have since decided that that would cause more problems than it solves. The current proposal is to remove the code
\setlength{\leftmargini}{1em}
\setlength{\leftmarginii}{1em}
\setlength{\leftmarginiii}{1em}
to return the item left margin to its default value. This fixes the issue that @benjamin-weiss raised about enumerate labels extending too far to the left relative to the surrounding text.
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Ah alright, then I misunderstood your intentions. With that I am fine.
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